Apparatus for mixing and dispensing measured quantities of fluid pigments



Oct. 31, 1961 l. LEVIN 3,

APPARATUS FOR MIXING AND DISPENSING MEASURED QUANTITIES OF FLUIDPIGMENTS Filed Jan. 30, 1959 2 Sheets-Sheet 1 O O 23 Q 4 /2 1 38 0 0 0 Il I 4 2/ l I 1 Z22 f E i? 1 1 42 :0 0 {ED GD I: I:1 26 I, :I 000 o 1: k:Qzz :0 i 53 I 208008 QED 58 .kb 56 O 1;. :H I v 0 0o 1 32 INVENTOR mg gl 3.9 0 0 0 29 I 27 BY KARL, E Lamas ATTORNEY LEVIN 3,006,505 APPARATUSFOR MIXING AND DISPENSING MEASURED QUANTITIES OF FLUID PIGMENTS FiledJan. 30, 1959 Oct. 31, 19 61 2 Sheets-Sheet 2 INV EN TOR M W KQRR LU iLOCKS ATTORNEY United States Patent APPARATUS FOR MIXING AND DIPENINGMEASURED QUANTETEES OF FLUID PIG- NENTS Isador Levin, Baltimore, Md,assignor to Baltimore Paint and Qhemieal Corporation, Baltimore, Md, acorporation of Maryland Filed Jan. 39, 1959, Ser. No. 79%,631 6 Claims.(Cl. 22226) The present invention relates to dispensers, and moreparticularly to highly accurate and low cost dispensers for thin orviscous colorant liquids or pastes, such as paint pigment, in whichrecirculation of the pigment through the parts of the dispenser isprovided.

It has been customary in the past for retail outlets to sell paint inrelatively small quantities, from a pint up to several gallons. in onecommon type of merchandising operation, the paint manufacturer selects alimited number of colors to produce, and these are packaged in metalcontainers and shipped to the retail outlets for resale. The ultimatepaint user, therefore, had a limited number of colors from which tochoose, and for example had a choice only of a light or dark green, anddid not have available for his selection any other of the green colorsor shades than the two particular ones. In more recent times, theso-called decorator colors have come into greater prominence and thedemand for them has been correspondingly increased.

Decorator colors may be considered to be a greatly expanded range ofshades and tints of the various colors. To supply the demand for thegreat range of colors, various workers in the art have endeavored toprovide the paint retailer with some apparatus for mixing the great manycolors in the desired range. To this end, these workers have startedwith the basic concept that a white or colorless paint base should befurnished in the pint, quart and gallon containers to the retailer andthat the retailer should have available to him the pigment for givingthe desired color to the paint. Thus, a retailer could provide hiscustomer on order with any one of perhaps a thousand shades of paintsimply by mixing the paint base and the necessary pigment. The art ofmixing varying amounts of one, two'or three pigments with a paint baseand in varying pigment amount is known, and it is known that by varyingthe pigment quantities there will result a wide variety of resultingcolors of the paint.

With the above basic concept of paint marketing, there has been providedseveral machines and systems in accordance therewith. These machines andsystems have been subject to one common and major drawback, thecomplexity and high cost thereof. As an example of apparatus that hasbeen provided previously, there may be mentioned one high cost poweredmachine having complex automatic valves and controls with attendantelectric circuitry, and in another example a number of transfercontainers were required thus involving much handling of the apparatusby the person performing the paint mixing.

Other attempted solutions to the problem have resorted to containerswith an outlet from the bottom, controlled by a valve. Such apparatushave not been satisfactory as they are prone to seepage, and thus are sountidy that they become unsuitable for use at the retail level.

An ancillary problem generated by the advent of decorator" colors isthat the painting contractor is called upon to provide the same numerousshades, tints and hues as the retail outlet. As such contractorstransport their equipment and materials in automobiles or panel trucks,they are not able to carry the large machines, above mentioned, withthem; equipment provided especially for their use heretofore has beeninaccurate and untidy, and has therefore been unsatisfactory.

A further problem in the provision of decorator colors apparatus is thatof uniformity of the final product. Otherwise stated, the color of thepaint, as formulated with the equipment, must match that shown on thesample. This requirement can be met if highly accurate quantities ofwell mixed pigments are dispensed from the machine or equipment. To meetthese needs, many workers in the art have provided complex and expensivemeasuring pumps, and some have additionally added a circulatory systembetween the containers, pumps and dispensers, thus adding even more tothe cost of the equipment. Thus, the solutions to the problem ofaccuracy and uniformity, ofiered by those skilled in the art, have beenexpensive and bulky.

An object of the present invention is to provide an economic dispenserfor thin or viscous colorant liquids or pastes.

Another object of the present invention is the provision of a dispenserfor thin or viscous colorant liquids or pastes wherein the liquids orpastes can be readily recirculated.

Yet another object of the present invention is to provide a dispenserwherein a movable spout may be readily placed in recirculating position.

A still further object of the present invention is the provision of adispenser having an economical indicator to indicate the level of fluidin the dispenser.

Still another object of the present invention is to provide a low costdispenser from which highly accurate quantities may be readilydispensed.

A further object of the present invention is the provision of a processfor coloring paint.

Other objects and the nature and advantages of the instant inventionwill be apparent from the following description taken in conjunctionwith the accompanying drawings, wherein:

FIG. 1 is a perspective view of a dispenser in accordance with thepresent invention.

FIG. 2 is a cross-sectional view taken on the line 2-4 of FIG. 1.

FIG. 3 is a plan view, partly in section, of the dispenser shown inFIG. 1. W

FIG. 4 is an elevational View of an agitator comprising a part of thedispenser of FIG. 1. 7

FIG. 5 is a partial cross-sectional view of another form of thedispenser of the invention.

FIG. 6 is a cross-sectional view of still another embodiment of theinvention, taken on the lines 6-6 of FIG. I. l

FIG. 7 is a plan view of the dispenser of FIG. 6.

FIG. 8 is a plan view of another embodiment of the invention. 7 I

Referring now to the drawings, wherein like reference numerals are usedto designate like or corresponding parts throughout the several views,there is shown in FIG. 1 a/dispenser 10 comprising a container 11 havingan open top, a cover 12 for the container 11 and a first pump 13 andsecond pump 14 mounted in the cover. there may be seen mounted in thecover 12 an agitator 15. Cover 12 further comprises a hole 16.

Referring now to FIG. 2, it may be seen that the container 11 has anannular, peripherally extending and inwardly directed flange 21. Thecover 12 is preferably of a transparent material and has a downwardlydirected discwlike extension 22 centrally thereof, the extension 22having a wall 23 that is generally perpendicular to the plane of thecover 12 and is slightly smaller than the opening defined by the flange21.

The first pump 13 has a relatively high capacity and is mounted in abore 24 in the cover 12. The pump 13 comprises a pump barrel 26 and aneduction tube 27 connected therewith. The eduction tube 27 has a valveseat 28, and a ball valve 29 is adapted to seat thereon. A retainer bar31 is placed across the passage within the eduction tube 27 and servesto prevent the ball valve 29 from moving away from the seat 28 to a toogreat extent.

The pump 13 has a piston 32 in the barrel 26, and this piston 32 has ahollow plunger 33 attached thereto and extending upwardly out of thebarrel 26. A second valve seat 34 is provided at the upper end of theplunger 33, and a ball valve 36 cooperates therewith.

A laterally extending spout 37 having a downwardly directed dischargeend 38 is secured in fluid communicating relationship with the plunger33 adjacent the top thereof.

At the lower end of the barrel 26 of pump 13 the pump is joined to aconical portion 39 and it is to this portion 39 that the eduction tube27 is connected. The juncture of conical portion 39 with barrel 26 formsa limiting stop that serves to arrest the downward movement of thepiston 32. The upward movement of piston 32 is arrested by a stop 41that extends into the barrel 26. These stops thus serve to aflord adefinite and predetermined capacity to the pump 13, and as will bereadily understood by moving the pump plunger 33 and piston 32 a givenfraction of the full amount of the travel thereof, the amount ofmaterial dispensed will be proportional to that fraction of the totaltravel that the piston and plunger have moved. To provide for readymeasurement of the amount of pigment dispensed, the plunger 33 isprovided withgraduations 42 on the exterior surface thereof, and it willbe understood that the graduations 42 are proportional to the capacityof the pump 13 at various positions of the plunger 33. An index for thegraduations 42 is provided by the top edge of an end closure 43. Theclosure 43 has a downwardly extending part 44 and an outwardly extendingflange 46. The pump barrel 26 has an outwardly extending flange 47 andan upward extension 48. The part 44 extends within the extension 48, andthe flanges 46 and 47 thus clamp the cover 12 between them. Since theextension 48 and part 44 are secured together, this construction servesto attach the pump 13 to the cover 12.

As will be readily understood, when the plunger 3-3 and piston 32 areraised, ball valve 36 will seat on the seat 34 and ball valve 29 will beraised from the seat 28, and thus pigment will flow into the pump barrelthrough the eduction tube 27. Using the graduations 42, one may move theplunger 33 upwardly a predetermined amount, and then when the plunger 33is pushed downwardly the ball valve 29 will seat and the ball valve 36will unseat to cause dispensing of the pigment through the spout 37 andthe discharge end 38. Because the pistons 32 and plunger 33 arerotatable within the barrel 26, the discharge end 38 of the spout 37 maybe moved to various selected places.

The second pump 14 is substantially identical in construction with thepump 13, the pump 14 differing from the pump 13 in that it has asubstantially smaller barrel than the pump 13 with smaller graduations,and it will be readily understood therefrom that the capacity of thepump 14 is markedly lower than the capacity of the pump 13.

Two pumps have been used on the dispenser of the present invention inorder to provide a dispenser that can dispense pigment in relativelyaccurate quantities with extremely low cost equipment. These pumps 13and 14 are made of a readily available plastic material, and can beproduced in quantity at a very low cost. This is so because no expensivemachining is required as is the case with the use of machined-partpumps. Pumps thus made are accurate to a relatively high degree, and bythe use of two pumps of different capacities there is provided adispensing system that is both economical and highly accurate.

Referring again to FIG. 1, there may be seen therein an opening 16, andthis opening 16 in the cover 12 is positioned in a particular place inrelation to the pumps 13 and 14 and the agitator shaft 55. In FIG. 3 itmay be seen that the pumps 13 and 14 are relatively close together nearone edge of the cover 12. The opening 16 is at an almost diametricallyopposite point in the cover 12. As may be seen, the opening 16 is spacedfrom the barrel of the pump 13 the same distance as the discharge end 38of the spout 37. Similarly, the spout 37 of the pump 14 is of suchlength that the discharge end 38' thereof is also above the opening 16.The shaft 55 serves as a placing abutment for both the spout 37 of pump13 and the spout 37' of pump 14, and as may be seen from FIG. 3 thesides of the spout 37 and 37' abut against said shaft to thus positionthe discharge end 38 and 38 of the spouts 37 and 37 over the opening 16.

The agitator 15 may be seen in FIG. 4 to comprise a shaft 55 having acrank 56 at the upper end thereof, and a paddle 57 fixed on the lowerend thereof. The paddle 57 is preferably made of metal, and has ahorizontally extending indicating slit 58 therein, and immediately belowthe slit 58 appears the word LO, this serving as an indicia and beingformed of holes punched in the metal of the paddle 57. As will beunderstood, the slit 58 and the Word LO may be readily seen through thetransparent cover 12.

In use, the retail outlet will be provided with a number of containers11 having thin or viscous colorant liquids or pastes of different colorstherein. For example, the retail outlet may be provided with ten ortwelve different pigment containers. The dispensers 10 are placed at aconvenient location, and are withdrawn from that location as needed.Alternatively, the various dispensers 10 may be mounted upon a rotatablesupport, so that they may be each in turn brought above a shelf on whichthe base paint container is placed, with the lid thereof removed. Theuser then mixes the pigment within the container 11 by use of theagitator 15. Both of the spouts 37 and 37 are moved over the opening 16,with the sides of the spouts abutting against the shaft 55 and the pumps13 and 14 operated. This serves to prime the pumps 13 and 14 and thespouts 37 and 37 and ensures the dispensing of an accurate quantity ofthe pigment. After the operator is satisfied that the pumps 13 and 14are fully primed and are in operating condition, by observing thestreams of pigment from the discharge ends 38 and 38', he simplyrevolves the spout 37 so that the discharge end 38 thereof is over thecontainer of base paint. The plunger 33 is then raised the desiredamount as determined by the graduations 42, and then the plunger islowered to cause the dispensing of the desired quantity into the basepaint containers. The procedure is repeated with respect to pump 14, andthere is thereby assured the dispensing of an amount of pigment that issufiiciently accurate for painting purposes.

In FIG. 5, there is shown a dispenser for paint pigment that isparticularly adapted for use by painters. Painters are often called uponto provide many shades and tints of colors, and it is desirable thatthey be able to provide their customers with the desired color range.Also, the painter is not able to have bulky equipment at his disposal,such as known paint coloring and mixing apparatus, and there has beenprovided for the painters use only cumbersome and relativelyunmanageable apparatus. The dispenser of FIG. 5 comprises a container 61that is small and readily handled. Preferably, dispenser 61 will holdabout one quart of pigment. Container 61 is provided with a top 62having openings 63 and 64 therein, spaced as shown. Each of the openings63 and 64 has an upstanding screw threaded neck, 65 and 66, respectivelytherearound. On the neck 65 is a cap 65' that has mating screw threads,and a hole 67 therein. A pump 68 is secured to the cap 65' and extendsthrough the hole 67. Pump 68 is substantially identical to the pumps 13and 14, and will therefore not be described in detail. Pump 68 has alaterally extending spout 69 with a discharge end 70 that is downwardlydirected, and is of such a length as to be above the hole 64. A screwthreaded cap 71 is provided for the neck 66.

In order to agitate the pigment in the container 61, the cap 71 isplaced upon the screw threaded neck 66 and the container 61 agitated bya manual shaking. The cap 71 may then be removed and the discharge end70 placed above the opening 64. Thereafter, the plunger of pump 68 isreciprocated several times to ensure proper priming and flowage of thepigment. As will be apparent, this serves to recirculate the pigmentback into the container 61 without waste or mess. When it is desired todispense a measured quantity of pigment into a container of base paint,it is only necessary to withdraw the plunger of the pump 68 a particularamount as determined by the graduations on the plunger of the pump 68,and then to push down on the plunger to cause a dispensing of a measuredquantity of pigment. I

In FIGS. 6 and 7 there is shown another embodiment of the invention,wherein an open topped container 11 is provided with a transparent cover12 having a pump 13 mounted in a hole therein with the pump barrelextending downwardly into the container, as shown. The plunger 33 of thepump 13 has an outwardly and downwardly extending spout 37 in fluidcommunication therewith, with the end of the spout 37 of a length to beplaced above the hole 16 in cover 12. A hole 76 is provided centrally ofthe cover 12', which hole communicates with a hole in bearing block 74that is secured, as by cementing, to the cover 12. An agitator shaft 75extends through the hole 76 and the hole in the bearing block 74 and hasa blade 77 secured to the lower end thereof. A suitable knob 78 isprovided at the upper end of shaft 75 to aid in the manipulationthereof.

A bracket 80, of generally L-shape has a leg thereof secured to thecontainer 11 adjacent its top edge. Bracket 80 has an inwardly extendinglip 81 with a hole therethrough. A hole 82 in the cover 12 is inregistry with the hole in the lip 81 of bracket 8!), and a headedfastener 83 having depending, outwardly bowed spring legs passes throughthe hole 82 and the hole in the lip 81. Thus, the cover 12 is removablysecured to the container 11.

The embodiment of the invention shown in FIG. 8 is generally similar tothat shown in FIGS. 6 and 7. However, the cover 12 is secured to thecontainer 11 by screws 84 extending through appropriate holes 82 in thecover 12, the screws 84 having a threaded connection with the inwardlyextending lip 81. There are two brackets 80 provided in the FIG. 8embodiment.

When it is desired to use the embodiments of FIGS. 6 and 8, it is onlynecessary to remove the cover 12, by removing the fastening means 83 or84, and then filling the container 11 with the necessary viscouspigment. It will be understood, of course, that similar containers 11are filled with other pigments of difierent colors. Thereafter, thecover 12 is replaced, and secured to the container 11. When it isdesired to dispense the pigment for the purpose of preparing aparticular color of paint, it is only necessary to position the spout 37above the hole 16 and to reciprocate the plunger 33 in order to chargethe pump 13, and to recirculate the pigment. Periodically, the agitatorknob 78 will be manipulated in order to provide for thorough agitationof the pigment. Dispensing into a container is accomplished asheretofore indicated, i.e., by pulling the plunger 33 upwardly a desiredamount, as indicated by markings thereon, and then rotating the spout 37over the can of base paint. Then the plunger 33 is lowered to dispense ameasured amount of pigment into the can of base paint through the spout37.

There has been provided dispensers that are extremely economical toproduce and which are capable of dispensing thin or viscous colorantliquids or pastes in accurate quantities. These dispensers provide forready, fully effective agitation of the pigment and for visible, manualrecirculation of the pigment so as to prime the pump and ensure properfunctioning thereof, the recirculation being under fool-proof control.Uniquely the pumps are top mounted to the container. There has also beenprovided means for readily and accurately positioning the fully visibledischarge spout of the dispensing pump to the dispensing orrecirculating position, as well as an economical system for ensuring arelatively high accuracy of dispensed material. The embodiment of FIG. 2provides a portable unit for painters use having a quantitativedispenser.

It will be obvious to those skilled in the art that various changes maybe made without departing from the spirit of the invention and thereforethe invention is not limited to what is shown in the drawings anddescribed in the specification but only as indicated in the appendedclaims.

What is claimed is:

1. A dispenser for thin or viscous colorant liquids or pastes, such aspaint pigment, comprising a container having an open top and an annularperipherally extending inwardly directed flange, a cover of transparentmaterial having a downwardly directed disc-like extension centrallythereof, said extension having wall means generally perpendicular to theplane of said cover and being slightly smaller than the opening definedby said flange, a first pump mounted in a bore in said cover and havinga pump barrel and eduction tube extending into said container, a valveseat in said eduction tube and a ball valve adapted to seat on saidvalve seat, a piston in said barrel having a hollow plunger attachedthereto and extending upwardly out of said barrel, said piston andplunger being rotatable in said pump barrel, a second valve seat in saidplunger, a second ball valve adapted to seat on said second valve seat,a laterally extending spout having a downwardly directed discharge endse cured in fluid communicating relationship with said plunger adjacentthe top thereof, said plunger having graduations on the exterior surfacethereof proportional to the capacity of said pump at various positionsof saidplunger, an opening extending downwardly through said cover andspaced from said barrel the same distance as the discharge end of saidspout, an agitator having a shaft extending through a second bore insaid cover and having the lower end thereof in said container, a paddleon said shaft having a refill-indicating indicia thereon, the side ofsaid spout abutting said shaft when the discharge end of said spout isover said opening, and a second pump and spout mounted in a third borein said cover, said second pump having a substantially smaller barrelthan said first pump, the discharge end of the spout of said second pumpbeing above said opening and the side of the spout of the second pumpabutting said shaft in one position thereof, whereby both said pumps maybe brought into positions abutting said shaft to thereby locate thedischarge ends of the spouts thereof over said opening, and whereby saidpumps may be caused 7 to rapidly dispense a measured quantity of pigmentfrom said container.

2. A dispenser for thin or viscous colorant liquids or pastes, such aspaint pigment, comprising a container having an open top and an annularperipherally extending inwardly directed flange, a cover having adownwardly directed disc-like extension centrally thereof, saidextension having wall means generally perpendicular to the plane of saidcover and being slightly smaller than the opening defined by saidflange, a first pump mounted in a bore in said cover and having a pumpbarrel extending into said container, a piston in said barrel having ahollow plunger attached thereto and extending upwardly out of saidbarrel, said piston and plunger being rotatable in said pump barrel, alaterally extending spout having a downwardly directed discharge endsecured in fluid communicating relationship with said plunger adjacentthe top thereof, said plunger having graduations on the exterior surfacethereof proportional to the capacity of said pump at various positionsof said plunger, an opening extending downwardly through said cover andspaced from said barrel the same distance as the discharge end of saidspout, an agitator having a shaft extending through a second bore insaid cover and having the lower end thereof in said container, a paddleon said shaft, the side of said spout abutting said shaft when thedischarge end of said spout is over said opening, and a second pump andspout substantially identical to said first pump and spout mounted in athird bore in said cover, said second pump having a substantiallysmaller barrel than said first pump, the discharge end of the spout ofsaid second pump being above said opening and the side of the spout ofthe second pump abutting said shaft in one position thereof, wherebyboth said pumps may be brought into positions abutting said shaft tothereby locate the discharge ends of the spouts thereof over saidopening, and whereby said pumps may be caused to rapidly dispense ameasured quantity of pigment from said container.

3. A dispenser for thin or viscous colorant liquids or pastes, such aspaint pigment, comprising a container having an open top, a cover, afirst pump mounted in a bore in said cover and having a pump barrelextending into said container, a piston in said barrel having a hollowplunger attached thereto and extending upwardly out of said barrel, saidpiston and plunger being rotatable in said pump barrel, a laterallyextending spout having a downwardly directed discharge end secured influid communicating relationship with said plunger adjacent the topthereof, an opening extending downwardly through said cover and spacedfrom said barrel the same distance as the discharge end of said spout,an agitator having a shaft extending through a second bore in said coverand having the lower end thereof in said container, the side of saidspout abutting said shaft when the discharge end of said spout is oversaid opening, and a second pump and spout substantially identical tosaid first pump and spout mounted in a third bore in said cover, saidsecond pump having a substantially smaller barrel than said first pump,the discharge end of the spout of said second pump being above saidopening and the side of the spout of the second pump abutting said shaftin one position thereof, whereby both said pumps may be brought intopositions abutting said shaft to thereby locate the discharge ends ofthe spouts thereof over said opening, and whereby said pumps may becaused to rapidly dispense a measured quantity of pigment from saidcontainer.

4. A dispenser for thin or viscous colorant liquids or pastes, such aspaint pigment, comprising a container having an open top and an annularperipherally extending inwardly directed flange, a cover of transparentmaterial having a downwardly directed disc-like extension centrallythereof, said extension having wall means generally perpendicular to theplane of said cover and being slightly smaller than the opening definedby said flange, a pump mounted in a bore in said cover and having a pumpbarrel and eduction tube extending into said container, a valve seat insaid eduction tube and a ball valve adapted to seat on said valve seat,a piston in said barrel having a hollow plunger attached thereto andextending upwardly out of said barrel, said piston and plunger beingrotatable in said pump barrel, a second valve seat in said plunger, asecond ball valve adapted to seat on said second valve seat, a laterallyextending spout having a downwardly directed discharge end secured influid communicating relationship with said plunger adjacent the topthereof, said plunger having graduations on the exterior surface thereofproportional to the capacity of said pump at various positions of saidplunger, an opening extending downwardly through said cover and spacedfrom said barrel the same distance as the discharge end of said spout,an agitator having a shaft extending through a second bore in said coverand having the lower end thereof in said container, a paddle on saidshaft having a refill-indicating indicia thereon, the side of said spoutabutting said shaft when the discharge end of said spout is over saidopening, whereby said pump may be brought into positions abutting saidshaft to thereby locate the discharge end of the spout thereof over saidopening, and whereby said pump may be caused to rapidly dispense ameasured quantity of pigment from said container.

5. A dispenser for thin or viscous colorant liquids or pastes, such aspaint pigment, comprising a container having an open top and an annularperipherally extending inwardly directed flange, a cover having adownwardly directed disc-like extension centrally thereof, saidextension having wall means generally perpendicular to the plane of saidcover and being slightly smaller than the opening defined by saidflange, a pump mounted in a bore in said cover and having a pump barrelextending into said container, a piston in said barrel having a plungerattached thereto and extending upwardly out of said barrel, said pistonand plunger being rotatable in said pump barrel, a laterally extendingspout having a downwardly directed discharge end secured in fluidcommunicating relationship with said pump adjacent the top thereof, saidplunger having graduations on the exterior surface thereof proportionalto the capacity of said pump at various positions of said plunger, anopening extending downwardly through said cover and spaced from saidbarrel the same distance as the discharge end of said spout, an agitatorhaving a shaft extending through a second bore in said cover and havingthe lower end thereof in said container, a paddle on said shaft, theside of said spout abutting said shaft when the discharge end of saidspout is over said opening, whereby said pump may be brought intopositions abutting said shaft to thereby locate the discharge end of thespout thereof over said opening, and whereby said pump may be caused torapidly dispense a measured quantity of pigment from said container.

6. A dispenser for thin or viscous colorant liquids or pastes, such aspaint pigment, comprising a container having an open top, a cover, apump mounted in a bore in said :cover and having a pump barrel extendinginto said container, a piston in said barrel having a plunger attachedthereto and extending upwardly out of said barrel, said piston andplunger being rotatable in said pump barrel, a laterally extending spouthaving a downwardly directed discharge end secured in fluidcommunicating relationship with said pump adjacent the top thereof, anopening extending downwardly through said cover and spaced from saidbarrel the same distance as the discharge end of said spout, an agitatorhaving a shaft extending through a second bore in said cover and havingthe lower end thereof in said container, a paddle on said shaft, theside of said spout abutting said shaft when the discharge end of saidspout is over said 9 opening, whereby said pump may be brought intoposition abutting said shaft to thereby locate the discharge end of thespout thereof over said opening, and whereby said pump may be caused torapidly dispense a measured quantity of pigment from said container.

References Cited in the file of this patent UNITED STATES PATENTS 10Wertz Dec. 14, 1926 Peterson et a1. Jan. 11, 1927 White June 21, 1927Boe Aug. 2, 1927 Featherstone Mar. 22, 1932 Banowitz Feb. 28, 1956 GrayAug. 5, 1958 FOREIGN PATENTS Italy Dec. 24, 1934 Germany Apr. 26, 1956

